<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="flexiable.css">
    <script src="flexiable.js"></script>
    <link rel="stylesheet" href="imgUploading.css">
</head>
<body>
    <div class="box">
        <input type="file" multiple>
    </div>
    <div class="img__btn"></div>
</body>
<script src="imgUploading.js">
</script>
</html>